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设计了基于MBI5024的多彩LED点阵显示模块并给出其二次开发应用方案.采用LED专用16位元恒流驱动器MBI5024为点阵数据列驱动控制,4线/16线译码器74HC154及PNP型中功率三极管为点阵行驱动控制,利用三基色混色原理,模块中的每个像素点都由红、绿、蓝三种颜色的LED组合而成,模块化设计,将三基色高亮LED制成16×3×16点阵模块.并给出了利用该模块组建彩色图文显示系统的应用方案.
A colorful LED dot matrix display module based on MBI5024 is designed and its secondary development and application scheme is given.Using LED special 16bit constant current driver MBI5024 as the dot matrix data column driving control, 4-wire / 16-line decoder 74HC154 and PNP Type of power transistor drive control for the dot matrix line, the use of three primary color mixing principle, each pixel in the module by the red, green and blue LED combination of three colors, modular design, the three primary colors highlight LED Made of 16 × 3 × 16 dot matrix module, and gives the use of the module to build color graphics display system applications.